Detections
Analytics
OpenSSL 1.1.0 < 1.1.0a Multiple Vulnerabilities
high Nessus Plugin ID 93816
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Synopsis
The remote service is affected by multiple vulnerabilities.Description
The version of OpenSSL installed on the remote host is prior to 1.1.0a. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.1.0a advisory.- The ssl3_read_bytes function in record/rec_layer_s3.c in OpenSSL 1.1.0 before 1.1.0a allows remote attackers to cause a denial of service (infinite loop) by triggering a zero-length record in an SSL_peek call. (CVE-2016-6305)
- Multiple memory leaks in t1_lib.c in OpenSSL before 1.0.1u, 1.0.2 before 1.0.2i, and 1.1.0 before 1.1.0a allow remote attackers to cause a denial of service (memory consumption) via large OCSP Status Request extensions. (CVE-2016-6304)
- statem/statem_dtls.c in the DTLS implementation in OpenSSL 1.1.0 before 1.1.0a allocates memory before checking for an excessive length, which might allow remote attackers to cause a denial of service (memory consumption) via crafted DTLS messages. (CVE-2016-6308)
- The state-machine implementation in OpenSSL 1.1.0 before 1.1.0a allocates memory before checking for an excessive length, which might allow remote attackers to cause a denial of service (memory consumption) via crafted TLS messages, related to statem/statem.c and statem/statem_lib.c. (CVE-2016-6307)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to OpenSSL version 1.1.0a or later.See Also
https://www.openssl.org/news/secadv/20160922.txt
http://www.nessus.org/u?38bae510
http://www.nessus.org/u?b35a180d
http://www.nessus.org/u?eef590aa
http://www.nessus.org/u?ff41663f
https://www.cve.org/CVERecord?id=CVE-2016-6304
https://www.cve.org/CVERecord?id=CVE-2016-6305
Plugin Details
Severity: High
ID: 93816
File Name: openssl_1_1_0a.nasl
Version: 1.12
Type: combined
Agent: windows, macosx, unix
Family: Web Servers
Published: 9/30/2016
Updated: 10/23/2024
Configuration: Enable thorough checks
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.1
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2016-6304
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS Score Source: CVE-2016-6305
Vulnerability Information
CPE: cpe:/a:openssl:openssl
Required KB Items: installed_sw/OpenSSL
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/22/2016
Vulnerability Publication Date: 8/10/2015
Reference Information
CVE: CVE-2016-6304, CVE-2016-6305, CVE-2016-6307, CVE-2016-6308